I am playing around with the native capacitive touch function I found here: http://playground.arduino.cc//Code/CapacitiveSensor

I am using an arduino Nano with 8 analogue Inputs. For A6 and A7 the only reading I get is 17. The two pins appear to simply do nothing at all. I guess this might be an issue of the portmanipulation and bit-math which is going on in the function, but its really beyond my programming skills.

Yep - I was afraid of that. I didnt realize those two pins dont work that way until I had all my project soldered and cabled :-S .... if I had known in advance, I would have just used a mega. oh well...